An over 80,000 page first chargesheet with annexures will be filed by the CBI today in the 2G spectrum scam case against former Telecom Minister A Raja, some of his close aides and a couple of real estate companies for allegedly defrauding the exchequer . AIR correspondent quoting CBI sources reports the extent of loss to the state exchequer may not be included in this chargesheet as the Telecom Regulatory Authority of India is yet to complete the process of ascertaining the loss on allocation of spectrum to all operators between 2001 and 2008.The chargesheet, which will be filed a short while from now, is likely to cover the allegedly criminal conspiracy behind the allocation of spectrum during 2007-08 by Raja, the then Telecom minister.